dixell WING XW60L - User Manual

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XW60L
1. GENERAL WARNING
1.1 PLEASE READ BEFORE USING THIS MANUAL
• This manual is part of the product and should be kept near the instrument for easy and quick reference.
• The instrument shall not be used for purposes different from those described hereunder. It cannot be
used as a safety device.
• Check the application limits before proceeding.
1.2
SAFETY PRECAUTIONS
• Check the supply voltage is correct before connecting the instrument.
• Do not expose to water or moisture: use the controller only within the operating limits avoiding sudden
temperature changes with high atmospheric humidity to prevent formation of condensation
• Warning: disconnect all electrical connections before any kind of maintenance.
• Fit the probe where it is not accessible by the End User. The instrument must not be opened.
• In case of failure or faulty operation send the instrument back to the distributor or to “Dixell s.r.l.” (see
address) with a detailed description of the fault.
• Consider the maximum current which can be applied to each relay (see Technical Data).
• Ensure that the wires for probes, loads and the power supply are separated and far enough from each
other, without crossing or intertwining.
• In case of applications in industrial environments, the use of mains filters (our mod. FT1) in parallel with
inductive loads could be useful.
2. GENERAL DESCRIPTION
Model
XW260L
,
38x185
mm format, is microprocessor based controller suitable for applications on medium or
low temperature refrigerating units. It is provided with four relay outputs to control compressor, defrost - which
can be either electrical or hot gas - the evaporator fans and the lights.
It is also provided with three NTC probe inputs, one for temperature control, one to control the defrost end
temperature of the evaporator and the third, optional, for the display. There are two digital inputs (free contact)
for the door switch and configurable by parameter.
The standard TTL output allows the user to connect, by means of a TTL/RS485 external module, a
ModBUS-
RTU
compatible monitoring system and to programme the parameter list with the
“Hot Key”.
An optional output for remote display
“XW-REP”
is available.
3. CONTROLLING LOADS
3.1 THE COMPRESSOR
The regulation is performed according to the temperature measured by the thermostat probe with a positive
differential from the set point: if the temperature increases and reaches set point plus differential the
compressor is started and then turned off when the temperature reaches the set point value again.
In case of fault in the thermostat probe the start and stop of the compressor are timed through parameters
“
COn
” and “
COF
”.
3.2 FAST FREEZING
When defrost is not in progress, it can be activated the keypad by holding the X
X
key pressed for about 3
seconds. The compressor operates in continuous mode for the time set through the “CCt” parameter. The cycle
can be terminated before the end of the set time using the same activation key, X
X
for about 3 seconds.
3.3 DEFROST
Three defrost modes are available through the “tdF” parameter: defrost with electrical heater, hot gas or
thermostatic defrost. The defrost interval is control by means of parameter “EdF”: (EdF=in) the defrost is made
every “IdF” time, (EdF=Sd) the interval “IdF” is calculate through Smart Defrost algorithm (only when the
compressor is ON and the evaporator temperature is bigger than “SdF” parameter).
At the end of defrost the drip time is controlled through the “Fdt” parameter.
3.4 CONTROL OF EVAPORATOR FANS
The fan control mode is selected by means of the “FnC” parameter:
FnC=C-n fans will switch ON and OFF with the compressor and not run during defrost:;
FnC=C-y fans will run continuously, but not during defrost
After defrost, there is a timed fan delay allowing for drip time, set by means of the “Fnd” parameter.
FnC=O-n fans will switch ON and OFF with the compressor and run during defrost;
FnC=O-y fans will run continuously also during defrost
An additional parameter “FSt” provides the setting of temperature, detected by the evaporator probe, above
which the fans are always OFF. This can be used to make sure circulation of air only if his temperature is lower
than set in “FSt”.
4. KEYBOARD
To display and modify target set point; in programming mode it selects a parameter or confirm an
operation.
By holding it pressed for 3s when max or min temperature is displayed it will be erased.
To see the max. stored temperature; in programming mode it browses the parameter codes or
increases the displayed value. By holding it pressed for 3s the fast freezing cycle is started.
To see the min stored temperature; in programming mode it browses the parameter codes or
decreases the displayed value.
By holding it pressed for 3s the defrost is started.
Switch ON and OFF the cold room light.
Switch ON and OFF the instrument.
KEY COMBINATIONS
+
To lock and unlock the keyboard.
+
To enter the programming mode.
+
To exit the programming mode.
4.1 USE OF LEDS
Each LED function is described in the following table.
LED MODE Function
ON The compressor is running
FLASHING
- Programming Phase (flashing with LED
)
- Anti-short cycle delay enabled
ON The fan is running
FLASHING
Programming Phase (flashing with LED
)
ON The defrost is enabled
FLASHING Drip time in progress
ON The Fast Freezing cycle is enabled
ON - ALARM signal
- In “Pr2” indicates that the parameter is also present in “Pr1”
Function of the LEDs placed on the left top side of buttons:
BUTTON MODE FUNCTION
SET FLASHING The Set point is displayed and it can be modified
SET FAST FLASHING The Energy Saving is enabled
DEFROST ON The Manual Defrost is activated
LIGHT ON The Light is ON
ON/OFF ON The instrument is OFF
4.2 HOW TO SEE THE MIN TEMPERATURE
1.
Press and release the W
W
key.
2.
The “Lo” message will be displayed followed by the minimum temperature recorded.
3.
By pressing the W
W
key or waiting for 5s the normal display will be restored.
4.3 HOW TO SEE THE MAX TEMPERATURE
1.
Press and release the X
X
key.
2.
The “Hi” message will be displayed followed by the maximum temperature recorded.
3.
By pressing the X
X
key or waiting for 5s the normal display will be restored.
4.4 HOW TO RESET THE MAX AND MIN TEMPERATURE RECORDED
To reset the stored temperature, when max or min temperature is displayed :
1. Press SET key until “rST” label starts blinking.
N.B. After the installation RESET the temperature stored .
4.5 HOW TO SEE AND MODIFY THE SET POINT
1. Push and immediately release the
SET
key: the display will show the Set point value;
2. The SET LED start blinking;
3. To change the Set value push the X
X
or W
W
arrows within 10s.
4. To memorise the new set point value push the SET key again or wait 10s.
4.6 TO START A MANUAL DEFROST
1. Push the DEF key for more than 2 seconds and a manual defrost will start.
4.7 TO ENTER IN PARAMETERS LIST “PR1”
To enter the parameter list “Pr1” (user accessible parameters) operate as follows:
1. Enter the Programming mode by pressing the Set and DOWN key for few
seconds ( and
start blinking).
2. The instrument will show the first parameter present in “Pr1”

Summary

General Warnings and Safety Precautions

Please Read Before Using This Manual

Essential instructions for safe and quick reference during instrument use.

Safety Precautions

Critical safety measures to ensure proper and safe operation of the instrument.

General Description and Load Control

General Description of XW260 L Controller

Overview of the microprocessor-based controller for refrigeration units.

Compressor Operation

Explanation of compressor regulation based on temperature and set point.

Fast Freezing Function

How to activate and manage the continuous compressor operation for fast freezing.

Defrost Modes and Control

Details on various defrost types, intervals, and termination methods.

Evaporator Fan Control

Configuration and operational modes for evaporator fans.

Keyboard Operations and Indicators

LED Indicator Functions

Explanation of the meaning and function of each LED on the keyboard.

Temperature Monitoring and Reset

Procedures for viewing minimum/maximum temperatures and resetting stored values.

Set Point Modification

Guide to viewing and changing the target set point value.

Manual Defrost and Parameter Access

How to initiate a manual defrost and access user parameters (Pr1).

Parameter Lists and Access

Accessing Parameter List Pr2

Steps to access the protected parameter list (Pr2) using a security code.

Parameter Value Modification

Detailed steps for changing parameter values within the programming mode.

Keyboard Locking and Unlocking

Procedure to lock the keyboard to prevent unintended changes and how to unlock it.

Instrument On;Off Function

How to turn the instrument on and off, and the effect on relays and regulations.

Viewing Probe Values

Steps to display the current readings from the connected probes.

Parameter Definitions: Regulation, Display, Defrost, Fans, Alarms

Regulation Parameters

Definitions for control parameters like differential, set point limits.

Display Parameters

Settings related to temperature units, resolution, and probe display.

Defrost Parameters

Configuration options for defrost type, intervals, duration, and termination.

Fan Parameters

Settings for fan operating mode, delay after defrost, and stop temperature.

Alarm Parameters

Configuration of temperature alarms, delays, and alarm types.

Probe and Digital Input Configuration

Probe Calibration and Presence

Settings for probe calibration offsets and presence detection.

Digital Input Configuration

Setup for digital inputs, including polarity and function selection.

Digital Input Functions and Operation

Digital Input Operating Modes

Configuration of digital inputs for various functions like alarm or defrost.

Door Switch Input

Functionality of the door switch input and its effect on alarms and operation.

Configurable Input Functions

Details on using digital inputs for generic alarm, serious alarm, pressure switch, defrost start.

Energy Saving and Remote On;Off

Configuration for energy saving mode and remote instrument on/off control.

Installation and Mounting Procedures

Panel Cut Out Dimensions

Specifications for the panel cut-out required for instrument mounting.

Mounting with Keyboard Cover

Instructions for mounting the instrument with the keyboard cover opening downward or upward.

Electrical Connections and TTL Serial Line

Electrical Connection Guidelines

Instructions for connecting power supply, relays, and digital/analog inputs.

Probe Connection Recommendations

Best practices for mounting and connecting thermostat and defrost probes.

TTL Serial Line Usage

Information on connecting to a network via TTL/RS485 module and using the Hot Key.

Hot Key Programming and Alarm Signals

Downloading Parameters with Hot Key

Procedure to download parameter list from Hot Key to the instrument.

Alarm Signal Messages

List of alarm messages, their causes, and the corresponding output actions.

Uploading Parameters and Default Settings

Uploading Parameters to Hot Key

Procedure to upload the instrument's parameter list to the Hot Key.

Default Setting Values

Table of default values for various parameters in the XW260L controller.

Technical Data and Connections Summary

Technical Specifications

Details on housing, mounting, protection, power supply, and display.

Relay Outputs and Inputs

Information on relay ratings, probe inputs, digital inputs, and serial output.

Connection Diagram

Visual representation of the electrical connections for the XW260L unit.

dixell WING XW60L Specifications

General

Model	XW60L
Temperature Range (PTC)	-50°C to +150°C
Power Consumption	3 VA max
Resolution	0.1°C
Dimensions	74x32x60 mm
Type	Thermostat
Relay Output	8(3)A, 250V AC SPDT
Communication	TTL (for external modules)
Accuracy	±0.5 °C
Protection Degree	IP65 (front)
Humidity	20% to 90% RH non-condensing